<template>
  <div class="upload-container">
    <el-button :style="{background:color,borderColor:color}" icon="el-icon-upload" size="mini" type="primary" @click=" dialogVisible=true">
      上传
    </el-button>
    <el-dialog :visible.sync="dialogVisible" append-to-body>
      <el-upload
        :multiple="true"
        :file-list="fileList"
        :show-file-list="true"
        :on-remove="handleRemove"
        :on-success="handleSuccess"
        :before-upload="beforeUpload"
        class="editor-slide-upload"
        :action="uploadUrl"
        :data="data"
        :headers="headers"
        accept="image/*"
        list-type="picture-card"
      >
        <el-button size="small" type="primary">
          上传图片
        </el-button>
      </el-upload>
      <el-button @click="dialogVisible = false">
        取消
      </el-button>
      <el-button type="primary" @click="handleSubmit">
        确认
      </el-button>
    </el-dialog>
  </div>
</template>

<script>
import { getToken } from "@/utils/auth";
import axios from 'axios'

export default {
  name: 'EditorSlideUpload',
  props: {
    color: {
      type: String,
      default: '#1890ff'
    }
  },
  data() {
    return {
      dialogVisible: false,
      listObj: {},
      fileList: [],
      data: {},
      uploadUrl: '',//https://httpbin.org/post
      headers: {
        'Authorization': 'Bearer ' + getToken()
      },
      host: '',
      dir: ''
    }
  },
  methods: {
    checkAllSuccess() {
      return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess)
    },
    handleSubmit() {
      const arr = Object.keys(this.listObj).map(v => this.listObj[v])
      if (!this.checkAllSuccess()) {
        this.$message('请等待所有图片上传成功。如果有网络问题，请刷新页面，重新上传!')
        return
      }
      this.$emit('successCBK', arr)
      this.listObj = {}
      this.fileList = []
      this.dialogVisible = false
    },
    handleSuccess(response, file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          // this.listObj[objKeyArr[i]].url = response.files.file
          this.listObj[objKeyArr[i]].hasSuccess = true
          return
        }
      }
    },
    handleRemove(file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          delete this.listObj[objKeyArr[i]]
          return
        }
      }
    },
    beforeUpload(file) {     
      const _self = this
      const fileName = file.uid
      this.data.key = this.dir + '.' + fileName
      this.listObj[fileName] = {}
      return new Promise((resolve, reject) => {
        _self.listObj[fileName] = { hasSuccess: false, uid: file.uid, url: this.host + '/' + this.data.key }
        resolve(true)
      })
    }
  },
  mounted() {
    this.$nextTick(() => {
      axios.get("https://api.mdc.movecloud.cn/api/oss-signature?objname=alphajiushivip").then((res)=>{
        if(res.status*1==200){
          this.uploadUrl = res.data.data.host
          this.data = {
            signature: res.data.data.signature,
            ossAccessKeyId: res.data.data.accessid,
            policy: res.data.data.policy,
            key: res.data.data.dir+res.data.sys_time
          }
          this.host = res.data.data.host
          this.dir = res.data.data.dir+res.data.sys_time
        }
      })
    })
  }
}
</script>

<style lang="scss" scoped>
.editor-slide-upload {
  margin-bottom: 20px;
  ::v-deep .el-upload--picture-card {
    width: 100%;
  }
}
</style>
